XOOMAR

CARMAX INC (KMX)

Every FINRA and SEC series the site collects for CARMAX INC: short interest with days to cover, daily short sale volume, fails to deliver and Form 4 insider trades. Listed on NYSE.

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11.2M

Short interest

settlement 2026-08-31

6.4

Days to cover

-11.3% vs prior

60.9%

Short share of volume

2026-09-17

163,569

Fails to deliver

settlement 2026-08-26

Thu 24 Sep

Next earnings

estimated; last year 2025-09-25

$1.0M

Insider flow, 90 days

5 buys, 0 sells

As of 2026-09-17.

Short interest

FINRA, twice a month; the last 12 months shown, all 48 settlements in the JSON

As of 31 August 2026, short interest in KMX is 11,186,795 shares, down 2,610,531 shares over the last month. Over the last 48 readings it ranged from 10,837,785 shares (15 April 2025) to 17,492,111 shares (15 October 2024). The latest reading sits at the bottom of that range. At the reported average volume of 1.7M shares a day that is 6.4 days to cover, elevated.

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SettlementShares shortChangeAvg daily volumeDays to cover
2026-08-3111,186,795-11.3%1,738,7646.43
2026-08-1412,605,601-8.6%1,744,4107.23
2026-07-3113,797,326+19.7%2,859,3954.83
2026-07-1511,526,450-8.5%2,824,5664.08
2026-06-3012,599,625-15.6%5,004,1742.52
2026-06-1514,919,965-1.4%3,414,9084.37
2026-05-2915,131,814-11.5%3,036,1834.98
2026-05-1517,105,933+13.9%2,657,6076.44
2026-04-3015,018,095+5.3%3,064,0504.90
2026-04-1514,261,257-5.5%4,537,9623.14
2026-03-3115,085,743-10.8%3,077,3324.90
2026-03-1316,912,585+12.6%3,212,9885.26
2026-02-2715,016,886+3.6%3,527,0414.26
2026-02-1314,488,831+1.1%3,270,9024.43
2026-01-3014,338,051-13.9%3,187,3164.50
2026-01-1516,653,471+6.5%4,223,1433.94
2025-12-3115,631,463+18.0%4,898,0083.19
2025-12-1513,249,828-12.4%3,322,1963.99
2025-11-2815,132,799+3.1%4,356,2073.47
2025-11-1414,675,372-11.8%8,007,6491.83
2025-10-3116,629,871+14.9%6,617,9852.51
2025-10-1514,467,857+1.1%4,158,6343.48
2025-09-3014,312,235-4.2%6,947,8882.06
2025-09-1514,938,233+0.7%2,755,3205.42

Daily short volume

FINRA Reg SHO, last 60 sessions. JSON

As of 17 September 2026, the short share of KMX volume is 60.9%, up 4.4 points over the last five sessions. Over the last 52 readings it ranged from 29.5% (5 August 2026) to 69.8% (14 September 2026). The latest reading is 7.9 points above the 30-session average of 53.0%, on 696K shares reported.

DateShort volumeTotal volumeShort shareExempt
2026-09-17424K696K60.9%1,617
2026-09-16553K844K65.6%363
2026-09-15476K736K64.6%120
2026-09-14265K379K69.8%0
2026-09-11296K646K45.9%2
2026-09-10305K540K56.5%60
2026-09-09348K681K51.1%130
2026-09-08320K616K51.9%1
2026-09-04150K447K33.5%178
2026-09-03391K737K53.1%190
2026-09-02294K548K53.6%347
2026-09-01248K476K52.1%200
2026-08-31170K316K53.8%68
2026-08-28201K379K53.0%4
2026-08-27203K373K54.4%595
2026-08-26306K625K48.9%0
2026-08-25382K778K49.1%0
2026-08-24430K631K68.1%200
2026-08-21361K666K54.1%8,022
2026-08-20538K1.1M48.3%38
2026-08-19264K839K31.4%272
2026-08-18408K602K67.8%63
2026-08-17286K603K47.4%7
2026-08-14375K613K61.2%316
2026-08-13432K835K51.7%67
2026-08-12283K467K60.6%0
2026-08-11340K558K60.9%17
2026-08-10279K591K47.1%855
2026-08-07164K390K42.1%0
2026-08-06320K987K32.4%492

Fails to deliver

SEC, by settlement date. JSON

As of 26 August 2026, the fails-to-deliver balance in KMX is 163,569 shares, up 163,185 shares over the last settlement date. Over the last 52 readings it ranged from 2 shares (19 December 2025) to 1,463,117 shares (7 November 2025).

SettlementShares failedPriceValue
2026-08-26163,569$64.22$10.5M
2026-08-13384$58.71$23K
2026-07-23211$57.45$12K
2026-07-22211$57.61$12K
2026-07-20700$57.33$40K
2026-07-151,104$55.73$62K
2026-07-1040$51.01$2K
2026-07-0849$51.05$3K
2026-07-06178$50.98$9K
2026-06-26111$52.90$6K
2026-06-253$50.79$152
2026-06-2215,778$53.66$847K
2026-06-1813,027$47.43$618K
2026-06-1719$52.11$990
2026-06-161,354$52.21$71K
2026-06-153,217$51.26$165K
2026-06-105$48.01$240
2026-06-0996$47.50$5K
2026-06-057$46.92$328
2026-06-03410$43.93$18K
2026-06-02382$45.02$17K
2026-05-261,091$40.33$44K
2026-05-21199$37.33$7K
2026-05-20809$36.27$29K
2026-05-19295$37.05$11K
2026-04-292,429$38.64$94K
2026-04-282,408$38.17$92K
2026-04-1471,980$49.08$3.5M
2026-04-133,400$46.72$159K
2026-03-2315$41.86$628

Insider trades

SEC Form 4, newest first, 50 of 100 shown. JSON

Insiders at KMX reported 5 open-market buys worth $1.0M in the last 90 days and no open-market sells. Clustered voluntary buying is historically the stronger insider signal because insiders buy for one reason. Latest filing: KESSLER JAMES FRANCIS on 2026-06-26.

DateInsiderTitleTypeSharesPriceValueOwned after
2026-06-26KESSLER JAMES FRANCISn/aGrant4K$0.00$04K
2026-06-26OShaughnessy Robertn/aGrant4K$0.00$04K
2026-06-26COBB WILLIAM Cn/aGrant4K$0.00$04K
2026-06-26ONeil Mark Fn/aGrant4K$0.00$033K
2026-06-26Chawla Sonan/aGrant4K$0.00$025K
2026-06-26FOLLIARD THOMAS Jn/aGrant4K$0.00$0228K
2026-06-26Shinder Marcellan/aGrant4K$0.00$029K
2026-06-26Satriano Pietron/aGrant4K$0.00$020K
2026-06-26McCreight David W.n/aGrant4K$0.00$040K
2026-06-26Bensen Peter Jn/aGrant4K$0.00$028K
2026-06-25Chawla Sonan/aBuy2K$53.39$107K22K
2026-06-25Shinder Marcellan/aBuy574$52.01$30K25K
2026-06-24ONeil Mark Fn/aBuy5K$52.36$251K29K
2026-06-23FOLLIARD THOMAS Jn/aTax withholding4K$51.91$188K224K
2026-06-23FOLLIARD THOMAS Jn/aOption exercise15K$51.91$771K228K
2026-06-22Bensen Peter Jn/aBuy3K$52.20$131K25K
2026-06-22Barr KeithPresident and CEOBuy9K$53.01$498K33K
2026-05-01Livesay Jill AVP, Controller & PAOOption exercise1Kn/an/a11K
2026-05-01Livesay Jill AVP, Controller & PAOTax withholding319$38.53$12K11K
2026-05-01Stuckey John M IIISVP, Gen Counsel & SecretaryTax withholding357$38.53$14K2K
2026-05-01Stuckey John M IIISVP, Gen Counsel & SecretaryOption exercise1Kn/an/a3K
2026-05-01Mayor-Mora Enrique NEVP & CFOTax withholding1K$38.53$39K23K
2026-05-01Daniels Jon GEVP, CAFTax withholding822$38.53$32K2K
2026-05-01Cafritz Diane LEVP, Chief Innov & People OffTax withholding1K$38.53$39K10K
2026-05-01Wilson Charles JosephEVP and COOTax withholding1K$38.53$39K19K
2026-05-01Shamim MohammadEVP and CITOTax withholding1K$38.53$39K15K
2026-03-22Tuite TylerSVP & Chief Product OfficerOption exercise195n/an/a2K
2026-03-22Tuite TylerSVP & Chief Product OfficerOption exercise611n/an/a1K
2026-03-16McCreight David W.n/aTax withholding11K$41.71$476K36K
2026-03-16McCreight David W.n/aOption exercise31K$41.71$1.3M47K
2026-03-16Barr KeithPresident and CEOGrant24K$0.00$024K
2025-12-28Wilson Charles JosephEVP and COOTax withholding49$39.27$2K20K
2025-12-28Wilson Charles JosephEVP and COOOption exercise160n/an/a20K
2025-10-16Wilson Charles JosephEVP and COOW527$0.00$020K
2025-10-02STEENROD MITCHELL Dn/aBuy2K$45.57$91K38K
2025-10-02ONeil Mark Fn/aBuy11K$46.21$500K25K
2025-07-08Stuckey John M IIISVP, Gen Counsel & SecretaryGift70$0.00$02K
2025-07-07Stuckey John M IIISVP, Gen Counsel & SecretaryGift15$0.00$02K
2025-07-03Stuckey John M IIISVP, Gen Counsel & SecretaryGift20$0.00$02K
2025-07-02Daniels Jon GEVP, CAFSell2K$70.64$109K3K
2025-07-02Stuckey John M IIISVP, Gen Counsel & SecretaryGift55$0.00$02K
2025-06-30ONeil Mark Fn/aGrant3K$0.00$014K
2025-06-30McCreight David W.n/aGrant3K$0.00$017K
2025-06-30Goodman Shiran/aGrant3K$0.00$039K
2025-06-30STEENROD MITCHELL Dn/aGrant3K$0.00$036K
2025-06-30Shinder Marcellan/aGrant3K$0.00$024K
2025-06-30Chawla Sonan/aGrant3K$0.00$020K
2025-06-30Satriano Pietron/aGrant3K$0.00$016K
2025-06-30FOLLIARD THOMAS Jn/aGrant3K$0.00$0213K
2025-06-30Bensen Peter Jn/aGrant3K$0.00$022K

Form 4 filings are due within two business days of the trade. Insiders sell for many reasons that say nothing about the company; open-market buys are the rarer, stronger signal.

Large holders (13D and 13G)

One row per reporting person, newest filing first. JSON

6 holders above 5% have filed on KMX, all on Schedule 13G (passive). The largest reported stake is BlackRock, Inc. at 11.4% of the class (16,748,605 shares), filed 2025-11-06 for an event on 2025-10-31.

FiledFormHolderSharesOf classEvent
2026-08-1213G/Ano. 2AQR Capital Management, LLCinvestment adviser6.6M4.7%2026-06-30
2026-08-1213G/Ano. 2AQR Capital Management Holdings, LLCparent holding company6.6M4.7%2026-06-30
2026-05-1413G/Ano. 1AQR Capital Management Holdings, LLCparent holding company10.1M7.1%2026-03-31
2026-05-1413G/Ano. 1AQR Capital Management, LLCinvestment adviser10.1M7.1%2026-03-31
2026-04-2913GVanguard Capital Managementinvestment adviser7.5M5.3%2026-03-31
2026-04-2913GVanguard Portfolio Managementinvestment adviser7.4M5.2%2026-03-31
2026-03-2613G/Ano. 14The Vanguard Groupinvestment adviser00.0%2026-03-13
2026-02-1313GAQR Capital Management Holdings, LLCparent holding company7.9M5.6%2025-12-31
2026-02-1313GAQR Capital Management, LLCinvestment adviser7.9M5.6%2025-12-31
2025-11-0613G/Ano. 12BlackRock, Inc.parent holding company16.7M11.4%2025-10-31

13F holders

Tracked managers holding KMX at their latest 13F. JSON

8 of the 30 tracked managers held KMX at their latest 13F, $1.24B in total at quarter-end prices. AQR Capital Management is the largest at $349.0M (0.1% of its portfolio) as of 2026-06-30. Over the prior quarter 4 added shares and 4 cut.

FundQuarterSharesValueOf portfolioChange in shares
AQR Capital Management2026-06-306.6M$349.0M0.12%-3.4M
Two Sigma Investments2026-06-305.8M$309.4M0.22%+492K
D. E. Shaw & Co.2026-06-303.4M$181.8M0.09%+185K
Starboard Value2026-06-303.2M$169.6M3.75%-3.0M
Millennium Management2026-06-301.9M$101.9M0.04%+523K
Renaissance Technologies2026-06-30864K$45.7M0.06%-381K
Citadel Advisors2026-06-30763K$40.4M0.00%-536K
Point72 Asset Management2026-06-30718K$38.0M0.04%+381K

Only the 30 tracked managers on the funds hub; a 13F reports long positions in US listed stock at quarter end, 45 days late, and says nothing about shorts or positions sold since.

Financials

SEC XBRL, as filed. JSON

In Q2 2026 (quarter ended 2026-05-31) CARMAX INC reported revenue of $8.01B, up 6.2% from the same quarter a year earlier, and net income of $185.6M (1.31 diluted EPS). In FY 2025 it generated $1.78B of operating cash flow and spent $642.8M on buybacks. As of 2026-05-31, cash was $132.2M against $17.56B of debt.

Cash
$132.2M
Debt
$17.56B
Total assets
$26.63B
Shares outstanding
141,911,096

Quarterly, last 8 quarters

QuarterPeriod endRevenueNet incomeMarginDiluted EPS
Q2 20262026-05-31$8.01B$185.6M2.3%1.31
Q4 2025derived2026-02-28$5.95Bn/an/an/a
Q4 20252025-11-30$5.79B$62.2M1.1%0.43
Q3 20252025-08-31$6.59B$95.4M1.4%0.64
Q2 20252025-05-31$7.55B$210.4M2.8%1.38
Q4 2024derived2025-02-28$6.00Bn/an/an/a
Q4 20242024-11-30$6.22B$125.4M2.0%0.81
Q3 20242024-08-31$7.01B$132.8M1.9%0.85

Fiscal years, with buybacks and dividends

Fiscal yearEndsRevenueNet incomeOperating cash flowCapexBuybacksDividends
FY 20252026-02-28$25.88Bn/a$1.78B$541.0M$642.8Mn/a
FY 20242025-02-28$26.35Bn/a$624.4M$467.9M$428.5Mn/a
FY 20232024-02-29$26.54Bn/a$458.6M$465.3M$94.1Mn/a
FY 20222023-02-28$29.68Bn/a$1.28B$422.7M$333.9Mn/a
FY 20212022-02-28$31.90Bn/a-$2.55B$308.5M$576.5Mn/a

Quarters are the three-month figures the company reports; a fourth quarter marked derived is the fiscal year less the three reported quarters, since companies report it only inside the 10-K. Fiscal years are the annual figures. Buybacks are cash paid to repurchase common stock in the year (XBRL PaymentsForRepurchaseOfCommonStock), not authorizations. Balance sheet lines are as of 2026-05-31; shares outstanding as of 2026-06-22 from the cover page.

What this page is

CARMAX INC in the regulatory record

Regulators publish company data in separate files that never sit next to each other: FINRA's twice-monthly short interest, its daily short sale volume, the SEC's fails-to-deliver counts, and each insider's Form 4. A company page pulls every series the site collects for one ticker onto one URL, keyed by the SEC's own ticker list, so the short position, the daily flow, the settlement fails and what insiders are doing can be read together.

Each section has its own history table, a summary sentence built from the rows (last value, change, range with dates) and its own JSON and CSV links. Nothing on the page is written by a model; the sentences change only when the data does. A page exists only for companies with data in at least two series, and every section says when its source last updated.

This page follows CARMAX INC (KMX), SEC CIK 1170010, listed on NYSE. The cross-market tables live on the short interest and insider transactions hubs.

Source and method

Short interest
FINRA consolidated short interestTwice a month, about eight business days after settlement. Latest 2026-08-31.JSON and CSV
Daily short volume
FINRA Reg SHO daily filesEvery trading day, loaded the following morning. Latest 2026-09-17.JSON and CSV
Fails to deliver
SEC fails-to-deliver dataTwice a month, a few weeks after the half month ends. Latest 2026-08-26.JSON and CSV
Large holders
SEC EDGAR Schedule 13D and 13GEDGAR read every 30 minutes; 13D within five business days of crossing 5%, 13G on the passive schedule. Latest 2026-08-12.JSON and CSV
13F holders
SEC EDGAR Form 13F-HRQuarterly, filed within 45 days of quarter end; 30 tracked managers. Latest 2026-06-30.JSON and CSV
Financials
SEC XBRL company factsRefreshed weekly from the SEC's structured data; values are as filed in the 10-Q and 10-K. Latest 2026-05-31.JSON and CSV
Earnings dates
SEC EDGAR 8-K Item 2.02 (full-text search)EDGAR full-text search read twice a day; the estimate is last year's date plus 52 weeks. Latest 2026-06-17.JSON and CSV
Insider trades
SEC EDGAR Form 4EDGAR read every 30 minutes; filings are due two business days after the trade. Latest 2026-06-26.JSON and CSV
Company record
EDGAR filing index for CIK 1170010Ticker, name and exchange from the SEC's company list, refreshed weekly.
Rate limits
30 requests a minute without a key, 120 a minute with a key from a free account.

Data checks. Every dataset is checked against its source once a day. This dataset passed the last run, 18 Sep 05:40 UTC.

How to read it

  • Read the position against the flow: rising short interest with a high daily short share is new shorting; rising short interest with a normal short share is old shorts holding on.
  • Insider buys next to a crowded short are the combination that has historically preceded squeezes; insider sells next to a crowded short are common and mean little.
  • Fails to deliver matter relative to the float, not in absolute shares; a million failed shares in a mega cap is noise.

Analysis of what the data shows, not advice. XOOMAR does not recommend buying, selling or holding anything.

Datasets

Frequently Asked Questions

How much of KMX is sold short?
11,186,795 shares were held short at the 2026-08-31 settlement, 6.4 days of average volume. FINRA publishes the next count about eight business days after the 15th and the last business day of the month.
What is KMX's daily short volume?
On 2026-09-17, 423,712 of the 695,517 KMX shares reported to FINRA were sold short, 60.9% of the day's reported volume. Short volume is a flow for one day, not a position.
Does KMX have fails to deliver?
The SEC's latest file shows 163,569 KMX shares failed to deliver at settlement 2026-08-26. Fails are reported per settlement date and published twice a month with a lag.
Are KMX insiders buying or selling?
Insiders at KMX reported 5 open-market buys worth $1.0M in the last 90 days and no open-market sells. Clustered voluntary buying is historically the stronger insider signal because insiders buy for one reason. Latest filing: KESSLER JAMES FRANCIS on 2026-06-26.
Who owns more than 5% of KMX?
6 holders above 5% have filed on KMX, all on Schedule 13G (passive). The largest reported stake is BlackRock, Inc. at 11.4% of the class (16,748,605 shares), filed 2025-11-06 for an event on 2025-10-31.
What did KMX report last quarter?
In Q2 2026 (quarter ended 2026-05-31) CARMAX INC reported revenue of $8.01B, up 6.2% from the same quarter a year earlier, and net income of $185.6M (1.31 diluted EPS). In FY 2025 it generated $1.78B of operating cash flow and spent $642.8M on buybacks. As of 2026-05-31, cash was $132.2M against $17.56B of debt.
Which funds hold KMX?
8 of the 30 tracked managers held KMX at their latest 13F, $1.24B in total at quarter-end prices. AQR Capital Management is the largest at $349.0M (0.1% of its portfolio) as of 2026-06-30. Over the prior quarter 4 added shares and 4 cut.

Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.